______ properties can be observed only when the substance in a sample of matter are changing into different substances
2 answers:
Chemical properties can be observed only when the substance in a sample of matter are changing into different substances.
Answer: Chemical
Explanation:
Chemical properties of a substance can be observed only when the substances are changing its properties.
The change is irreversible so it needs to be at the time it is taking place else it would not be visible to the people.
The change in color of chemical substances can be observed during the time of chemical reaction.
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